Speaker
Dr
Stuart Paterson
(CERN)
Description
The LHCb distributed data analysis system consists of the Ganga job submission
front-end and the DIRAC Workload and Data Management System. Ganga is jointly
developed with ATLAS and allows LHCb users to submit jobs on several backends
including: several batch systems, LCG and DIRAC. The DIRAC API provides a
transparent and secure way for users to run jobs to the Grid and is the default mode
of submission for the LHCb VO. This is exploited by Ganga to perform distributed
user analysis for LHCb. This system provides LHCb with a consistent, efficient and
simple user experience in a variety of heterogeneous environments and facilitates the
incremental development of user analysis from local test jobs to the Worldwide LHC
Computing Grid.
With a steadily increasing number of users, the LHCb distributed analysis system has
been tuned and enhanced over the past two years. This paper will describe the recent
developments to support distributed data analysis for the LHCb experiment on WLCG.
Authors
Dr
Andrew Maier
(CERN)
Dr
Stuart Paterson
(CERN)
